(3)  
performance class 2 or 3 when taking off or landing at an aerodrome or operating site where the take-off or approach path is over water.

(b)  Each life-jacket or equivalent individual flotation device shall be equipped with a means of electric illumination for the purpose of facilitating the location of persons.

CAT.IDE.H.295 Crew survival suits
Each crew member shall wear a survival suit when operating:
(a)  
in performance class 1 or 2 on a flight over water in support of offshore operations, at a distance from land corresponding to more than 10 minutes flying time at normal cruising speed, when the weather report or forecasts available to the commander indicate that the sea temperature will be less than plus 10°C during the flight, or when the estimated rescue time exceeds the estimated survival time; or

(b)  
in performance class 3 on a flight over water beyond autorotational distance or safe forced landing distance from land, when the weather report or forecasts available to the commander indicate that the sea temperature will be less than plus 10°C during the flight.

CAT.IDE.H.300 Life-rafts, survival ELTs and survival equipment on extended overwater flights
(a)  Helicopters operated:
(1)  
in performance class 1 or 2 on a flight over water at a distance from land corresponding to more than 10 minutes flying time at normal cruising speed; or

(2)  
in performance class 3 on a flight over water at a distance corresponding to more than 3 minutes flying time at normal cruising speed, shall be equipped with:

(i)  
in the case of a helicopter carrying less than 12 persons, at least one life raft with a rated capacity of not less than the maximum number of persons on board, stowed so as to facilitate its ready use in an emergency;

(ii)  
in the case of a helicopter carrying more than 11 persons, at least two life-rafts sufficient together to accommodate all persons capable of being carried on board and with respective overload capacity sufficient to accommodate all persons on the helicopter, stowed so as to facilitate their ready use in an emergency;

(iii)  at least one survival ELT (ELT(S)) for each required life-raft; and
(iv)  life-saving equipment, including means of sustaining life, as appropriate to the flight to be undertaken.

CAT.IDE.H.305 Survival equipment
Helicopters operated over areas in which search and rescue would be especially difficult shall be equipped with:
(a)  
signalling equipment to make distress signals;

(b)  
at least one ELT(S); and

(c)  
additional survival equipment for the route to be flown taking account of the number of persons on board.

CAT.IDE.H.310 Additional requirements for helicopters conducting offshore operations in a hostile sea area
　
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本文鏈接地址：Annexes to the draft Commission Regulation on ‘Air Operations - OPS’(147)